Standards of Performance for Volatile Organic Liquid Storage Vessels (Including Petroleum Liquid Storage Vessels) for Which Construction, Reconstruction, or Modification Commenced After July 23, 1984

The U.S. Environmental Protection Agency (EPA) is finalizing amendments to the Standards of Performance for Volatile Organic Liquid Storage Vessels (Including Petroleum Liquid Storage Vessels) for Which Construction, Reconstruction, or Modification Commenced After July 23, 1984. We are finalizing specific amendments that would allow owners or operators of storage vessels subject to the Standards of Performance for Volatile Organic Liquid Storage Vessels and equipped with either an external floating roof (EFR) or internal floating roof (IFR) to voluntarily elect to comply with the requirements specified in the National Emission Standards for Storage Vessels (Tanks)--Control Level 2, as an alternative standard, in lieu of the requirements specified in the Standards of Performance for Volatile Organic Liquid Storage Vessels, subject to certain caveats and exceptions for monitoring, recordkeeping, and reporting.